script/dom/
canvaspattern.rsuse canvas_traits::canvas::{FillOrStrokeStyle, RepetitionStyle, SurfaceStyle};
use dom_struct::dom_struct;
use euclid::default::{Size2D, Transform2D};
use pixels::{IpcSnapshot, Snapshot};
use crate::dom::bindings::cell::DomRefCell;
use crate::dom::bindings::codegen::Bindings::CanvasRenderingContext2DBinding::CanvasPatternMethods;
use crate::dom::bindings::codegen::Bindings::DOMMatrixBinding::DOMMatrix2DInit;
use crate::dom::bindings::error::ErrorResult;
use crate::dom::bindings::reflector::{Reflector, reflect_dom_object};
use crate::dom::bindings::root::DomRoot;
use crate::dom::canvasgradient::ToFillOrStrokeStyle;
use crate::dom::dommatrixreadonly::dommatrix2dinit_to_matrix;
use crate::dom::globalscope::GlobalScope;
use crate::script_runtime::CanGc;
#[dom_struct]
pub(crate) struct CanvasPattern {
reflector_: Reflector,
#[no_trace]
surface_data: IpcSnapshot,
#[no_trace]
surface_size: Size2D<u32>,
repeat_x: bool,
repeat_y: bool,
#[no_trace]
transform: DomRefCell<Transform2D<f32>>,
origin_clean: bool,
}
impl CanvasPattern {
fn new_inherited(
surface_data: Snapshot,
surface_size: Size2D<u32>,
repeat: RepetitionStyle,
origin_clean: bool,
) -> CanvasPattern {
let (x, y) = match repeat {
RepetitionStyle::Repeat => (true, true),
RepetitionStyle::RepeatX => (true, false),
RepetitionStyle::RepeatY => (false, true),
RepetitionStyle::NoRepeat => (false, false),
};
CanvasPattern {
reflector_: Reflector::new(),
surface_data: surface_data.as_ipc(),
surface_size,
repeat_x: x,
repeat_y: y,
transform: DomRefCell::new(Transform2D::identity()),
origin_clean,
}
}
pub(crate) fn new(
global: &GlobalScope,
surface_data: Snapshot,
surface_size: Size2D<u32>,
repeat: RepetitionStyle,
origin_clean: bool,
can_gc: CanGc,
) -> DomRoot<CanvasPattern> {
reflect_dom_object(
Box::new(CanvasPattern::new_inherited(
surface_data,
surface_size,
repeat,
origin_clean,
)),
global,
can_gc,
)
}
pub(crate) fn origin_is_clean(&self) -> bool {
self.origin_clean
}
}
impl CanvasPatternMethods<crate::DomTypeHolder> for CanvasPattern {
fn SetTransform(&self, transform: &DOMMatrix2DInit) -> ErrorResult {
let matrix = dommatrix2dinit_to_matrix(transform)?;
if !matrix.m11.is_finite() ||
!matrix.m12.is_finite() ||
!matrix.m21.is_finite() ||
!matrix.m22.is_finite() ||
!matrix.m31.is_finite() ||
!matrix.m32.is_finite()
{
return Ok(());
}
*self.transform.borrow_mut() = matrix.cast();
Ok(())
}
}
impl ToFillOrStrokeStyle for &CanvasPattern {
fn to_fill_or_stroke_style(self) -> FillOrStrokeStyle {
FillOrStrokeStyle::Surface(SurfaceStyle::new(
self.surface_data.clone(),
self.surface_size,
self.repeat_x,
self.repeat_y,
*self.transform.borrow(),
))
}
}